You can get all the hit you need from your misc slots really. Here is the list of Quest/Crafted/Rep items for pre-raid spell hit I made for my Warlock. There are 2 cloth items but I don't think for raiding it is a big for Shaman. And obviously in PvP you need nowhere near this much +hit.

Ring of Northern Tears = 43
Voodoo Signet = 24
Emeline's Locket = 45
Flameheart Spell Scapel = 34
Dark Soldier Cape = 29
Rune of Infinite Power = 55
Hat of Wintry Doom = 52
Sash of the Wizened Wyrm = 40

Gloves enchant = 20
Boots enchant = 12

= 354 hit rating or ~13.5%.
Also, you could get a weapon chain for +28 and a battle elixir for +45 more.

Spell hit cap is 17% for bosses and most classes have +3% from talents. Also you can get +1% hit from having a Draenei in group, and improved Faerie Fire or Misery debuff will grant another 3% to the raid. So you could be capped in raids if you have as little as 10%.



I personally have Outfitter set up with a lower +hit setup for trash, since only +6% is needed.